translation 1

Question 1

what is protein synthesis catalysed by

Answer 1

ribozyme

Question 2

what are the 20 amino acids activated as

Answer 2

aminoacyl-trnas

Question 3

what are the 3 sites on ribosomes

Answer 3

EPA

Question 4

what are the 2 units of rna and what are there sizes

Answer 4

small and large
16s and 28s

Question 5

what defines where the rna stops and stops

Answer 5

open reading frame

Question 6

what does translation initiation require

Answer 6

eIFs or IFs

Question 7

what is the very first step of translation

Answer 7

the positioning of the small subunit and aminoacyl-trna

Question 8

what does translation elongation require

Answer 8

efs/eefs

Question 9

what does translation termination require

Answer 9

RFs/ eRFs

Question 10

what happens when the ribosome reaches the stop codon

Answer 10

the ribosome is recycled by RRF/ABCE1

Question 11

what is contained in the initiation complex

Answer 11

fmet-trna, 30s and initiation factors and GTP

Question 12

what sequence do mrna have on the end that base pairs with rrna and what doe this do

Answer 12

shine-Dalgarno
puts the start codon in the p site

Question 13

what will happen after the s-d is bound

Answer 13

50 s unit will bind

Question 14

what happens to the ribosome before bacterial elongation

Answer 14

the initiation factor dissociates, and the 50s binds
making it a 70s

Question 15

what are the differences between bacteria and eukaryotic mrna

Answer 15

a cap and tail
no shine dalagarno sequence
lots of regulation in utr

Question 16

what is the 5’ cap binding complex made up of and what does it bind to

Answer 16

eIF4G, eIF4E, eIF4A and the poly a binding protein
40s subunit